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The Linac Coherent Light Source at SLAC, the world’s first hard X-ray free-electron laser, takes X-ray snapshots of atoms and molecules at work, revealing fundamental processes in materials, technology and living things.

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Rooftop view of Linac Coherent Light Source (LCLS)

News Feature

To invent a new tool for studying how chemicals react at interfaces, researchers shoot tiny jets of oil and water at each other and...

Rainbow colors in a sheet of layered liquids
Video
After more than a decade, LCLS was upgraded to generate even more powerful X-ray laser beams. With the LCLS-II upgrade, LCLS is around 10,000...
The creation of the world's brightest X-ray
Video
News Feature

The award celebrates Huang’s achievements studying atom-scale physics with fast X-ray pulses.

Yijing Huang at Stanford University
Video
In a landmark experiment at SLAC National Accelerator Laboratory, scientists used an X-ray laser to capture the first snapshots of a chemical interaction between...
Video
Illustration

Illustration of how a single crystal sample of silicon deforms during shock compression on nanosecond timescales.

MEC silicon
News Feature

They saw how the material finds a path to contorting and flexing to avoid being irreversibly crushed.

MEC silicon
Illustration
When light drives electron transfer in a molecular complex, the surrounding solvent molecules also rapidly move.
When light drives electron transfer in a molecular complex, the surrounding solvent molecules also rapidly move.
Illustration

Scientists use a series of magnets to transform an electron bunch into a narrow current spike which then produces a very intense attosecond X-ray...

XLEAP illustration
Photograph

SLAC’s Linac Coherent Light Source (LCLS) Near Experimental Hall building at sunrise with Stanford University Hoover Tower in the background.

SLAC’s Linac Coherent Light Source (LCLS) Near Experimental Hall building at sunrise with Stanford University Hoover Tower in the background.
Illustration

The ultrafast, ultrabright X-ray pulses of the Linac Coherent Light Source (LCLS) have enabled unprecedented views of a catalyst in action, an important step...

Nilsson science cover
Photograph

Dominique White takes a look at the last cryomodule for LCLS-II delivered from Fermi National Accelerator Laboratory.

Dominique White takes a look at the last cryomodule for LCLS-II delivered from Fermi National Accelerator Laboratory.
Photograph

Kayla Ninh at LCLS’s ChemRIX Hutch 2.2 in Near Experimental Hall. 

Kayla Ninh at LCLS’s ChemRIX Hutch 2.2 in Near Experimental Hall.